Physics, 02.03.2021 01:00 kbkbkbkb7611
A meteorite with a mass of 25 kilograms falls to Earth in a direction perpendicular to
the Earthís surface. At t = 0 seconds the meteorite is 1000 meters above the Earth. At
t = 2 seconds it is 750 meters above the Earth. Assume the meteoriteís acceleration
due to gravity is constant during this time. Which of the following is the amount of
work the Earthís gravitational force has done on the meteorite between t O and t =
2?
245,600 )
61,250 )
183,750)
- 6,250 )
Answers: 2
Physics, 22.06.2019 04:20
Astone is thrown into a pond. what happens to the amplitude of the resulting waves as they get farther from the point where the stone hit the water? explain.
Answers: 3
Physics, 22.06.2019 14:20
A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.
Answers: 3
Physics, 22.06.2019 18:30
Both speed and velocity measure how fast something is moving. however, since speed is not a it does not require a(n question 6 options: a) quantity , unit b) magnitude, unit c) scalar, direction d) vector, direction
Answers: 2
Physics, 22.06.2019 21:20
Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s
Answers: 3
A meteorite with a mass of 25 kilograms falls to Earth in a direction perpendicular to
the Earthís...
Social Studies, 09.12.2020 14:00
Health, 09.12.2020 14:00
Mathematics, 09.12.2020 14:00
World Languages, 09.12.2020 14:00
English, 09.12.2020 14:00
Geography, 09.12.2020 14:00
History, 09.12.2020 14:00
Mathematics, 09.12.2020 14:00